CN114459730A - Device and method for testing anchoring state of seaplane model - Google Patents
Device and method for testing anchoring state of seaplane model Download PDFInfo
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- CN114459730A CN114459730A CN202111680583.3A CN202111680583A CN114459730A CN 114459730 A CN114459730 A CN 114459730A CN 202111680583 A CN202111680583 A CN 202111680583A CN 114459730 A CN114459730 A CN 114459730A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
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Abstract
The invention provides a test device and a method for the anchoring state of a seaplane model.A full-plane model is anchored on the water surface of a wide water pool through an underwater anchoring device, and the initial yaw angle during the model test is adjusted by a traction rope at the head and the tail of the model; wave motion response characteristic data are accurately tested by adopting a combined inertial navigation and GPS base station, and the data are transmitted in real time through a data transmission radio station. The practical anchoring state of the seaplane can be truly simulated, the implementation cost is low, the operation is simple, and the test data testing precision is high.
Description
Technical Field
The invention belongs to the technical field of air cushion aircraft tests, and particularly relates to a device and a method for testing the anchoring state of a seaplane model.
Background
The anchoring of the seaplane is that the seaplane is anchored and floats at a fixed water area position by throwing the seaplane to the water surface, thereby preventing the seaplane from colliding with nearby ships to be rescued, submerged reefs and the like. Surface mooring is a condition that is common to seaplanes for water rescue, particularly during offshore activities that are remote from the continent.
By developing a wave motion response characteristic test of the anchoring state of the seaplane, the characteristic rule of the wave motion response (parameters such as pitching, rolling, angular rate, water surface drift motion displacement and speed) of the anchoring state of the seaplane is obtained, and technical support is provided for the IRS initial alignment algorithm design of the airborne inertial reference system of the seaplane.
Disclosure of Invention
The invention provides a device and a method for testing the anchoring state of a seaplane model, which can truly simulate the actual anchoring state of a seaplane.
The invention provides a seaplane model anchoring state testing device in a first aspect, which comprises: the combined inertial navigation system comprises a combined inertial navigation system 3, a first GPS antenna 4, a second GPS antenna 5, a computer 8, a concrete pier 13, a water pool 14, an anchor cable ring 15, a first anchor cable rope 16, a second anchor cable rope 17 and a third anchor cable rope 18; wherein the content of the first and second substances,
the seaplane model 1 is arranged in the center of the pool 14; the concrete pier 13 is arranged at the center of the bottom of the pool 14;
the combined inertial navigation system 3 is arranged at the gravity center of the seaplane model 1, and the first GPS antenna 4 and the second GPS antenna 5 are respectively arranged at the head part and the tail part of the seaplane model 1 and are connected with the combined inertial navigation system 3;
the front end of the seaplane model 1 is provided with an anchor cable ring 15 and a first anchor cable 16, the tail part of the seaplane model 1 is connected with a second anchor cable 17, and the concrete pier 13 is connected with the anchor cable ring 15 through a third anchor cable 18; adjusting the seaplane model 1 at different yaw angles by pulling the first anchor rope 16 and the second anchor rope 17;
in the test process, after the waves reach the seaplane model 1, the first anchor rope 16 and the second anchor rope 17 are loosened, the computer 8 combines the longitudinal inclination angle, the course angle, the angular rate and the acceleration of the seaplane model 1 in the waves measured by the inertial navigation 3 before the waves generate echoes to obtain the statistical values of the longitudinal inclination angle, the course angle, the angular rate and the acceleration, and the computer 8 also draws the motion track of the anchoring of the seaplane model 1 under the waves according to the longitude and latitude data measured by the combined inertial navigation 3;
the statistical values include at least: mean, median, maximum, minimum.
Optionally, the method further includes: a mobile station data transmission radio station 6 and a mobile station data transmission radio station antenna 7;
the mobile station data transmission radio station 6 and the mobile station data transmission radio station antenna 7 are arranged on the seaplane model 1, and the mobile station data transmission radio station 6 is respectively connected with the combined inertial navigation device 3 and the mobile station data transmission radio station antenna 7;
the combined inertial navigation system 3 sends the detection data to the mobile station data radio 6 and sends the detection data through the mobile station data radio antenna 7.
Optionally, the method further includes: a GPS base station 9, a GPS base station antenna 10, a base station data transmission radio station 11 and a base station data transmission radio station antenna 12; wherein the content of the first and second substances,
the computer 8 is connected with a base station data transmission radio antenna 12 through a base station data transmission radio 11, and the GPS base station 9 is connected with a GPS base station antenna 10 and the base station data transmission radio 11;
the distance between the mobile station radio antenna 7 and the base station radio antenna 12 is within the transmission distance range of the radio.
Optionally, the base station data transmission radio antenna 12 is configured to send the received measurement data of the combined inertial navigation system 3 sent by the mobile station data transmission radio antenna 7 to the base station data transmission radio 11;
the base station data transmission radio station 11 is used for sending the received measurement data to the computer 8.
Optionally, the GPS base station antenna 10 transmits the GPS base station signal to the combined inertial navigation system 3 sequentially through the GPS base station 9, the base station data transmission radio 11, the base station data transmission radio antenna 12, the mobile station data transmission radio antenna 7, and the mobile station data transmission radio 6;
and the combined inertial navigation system 3 carries out real-time difference according to the GPS base station signal and the signals received from the first GPS antenna 4 and the second GPS antenna 5 so as to improve the detection precision.
Optionally, the method further includes: a video recorder 2;
the video recorder 2 is arranged on the side of the water pool 14 and used for recording the motion situation of the seaplane model 1 in the test process.
The invention also provides a method for testing the anchoring state of a seaplane model, which adopts the device in any one of the above aspects, and comprises the following steps:
adjusting the seaplane model 1 at different yaw angles by pulling the first anchor rope 16 and the second anchor rope 17;
when the seaplane model 1 is at different yaw angles, carrying out a test;
in the test process, when the waves reach the seaplane model 1, the first anchor rope 16 and the second anchor rope 17 are loosened, the computer 8 starts to obtain statistical values according to the trim angle, the course angle, the angular rate and the acceleration of the seaplane model 1 in the waves, which are measured by the combined inertial navigation system 3, and draws the motion trail of the seaplane model 1 anchored under the waves according to the longitude and latitude data until the waves generate echo waves;
the statistical values include at least: mean, median, maximum, minimum.
Optionally, the method further comprises:
the combined inertial navigation system 3 receives GPS base station signals and carries out real-time difference according to the GPS base station signals and signals received from the first GPS antenna 4 and the second GPS antenna 5 so as to improve detection precision.
The invention provides a device and a method for testing the anchoring state of a seaplane model.A model is connected with a concrete pier block, and the holding force of an iron anchor of a real machine is simulated by the downward-pressing gravity and the friction force of a concrete pier and the bottom of a water pool; selecting a rope meeting the requirements according to the rope characteristics and parameters, and avoiding the rope from being broken in the test, thereby ensuring the safety of the model test; redesigning the anchoring mooring interface device of the test model according to the line type of the ship body at the coordinate, performing structure strengthening treatment on the bottom of the ship body at the installation position, and simultaneously ensuring that the state of bearing the maximum tensile force of the anchor cable during anchoring test can be met; the whole model is anchored on the water surface of the open water pool through an underwater anchoring device, and the initial yaw angle during the model test is adjusted by the traction ropes at the head and the tail of the model; and accurately testing wave motion response characteristic data by adopting a combined inertial navigation and GPS base station, and transmitting the data in real time by a data transmission radio station. The method can truly simulate the actual anchoring state of the airplane on water, and has the advantages of low implementation cost, simple operation and high test data test precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a first structural schematic diagram of the wave motion response characteristic testing device of the model of the seaplane in the anchoring state of the invention;
FIG. 2 is a schematic structural diagram II of the wave motion response characteristic testing device for the model of the seaplane in the anchoring state of the invention;
FIG. 3 is a first schematic view of the anchor grommet of the present invention;
FIG. 4 is a second schematic view of the anchor grommet of the present invention;
description of reference numerals:
1-seaplane model; 2-video recorder;
3-combined inertial navigation; 4-a first GPS antenna;
5-a second GPS antenna; 6-mobile station data transmission radio station;
7-mobile station data radio antenna; 8-a computer;
9-a GPS base station; 10-GPS base station antenna;
11-base station data transmission radio station; 12-base station data radio antenna;
13-concrete pier; 14-a pool;
15-anchor grommet; 16-a first anchor line;
17-a second anchor line; 18-third anchor line.
Detailed Description
The device and the method for testing the wave motion response characteristics of the model of the seaplane in the anchoring state are explained in the following by combining the attached drawings.
As shown in fig. 1 to 4, the present invention provides a wave motion response characteristic test device for a model anchoring state of a seaplane, which comprises: the device comprises a video recorder 2, a combined inertial navigation system 3, a first GPS antenna 4, a second GPS antenna 5, a mobile station data transmission radio station 6, a mobile station data transmission radio station antenna 7, a computer 8, a GPS base station 9, a GPS base station antenna 10, a base station data transmission radio station 11, a base station data transmission radio station antenna 12, a concrete pier 13, a water pool 14, an anchor cable ring 15, a first anchor cable rope 16 and a second anchor cable rope 17.
In which the water craft model 1 is placed in the centre of the open water 14.
The video recorder 2 is arranged on the side surface of the seaplane model 1, and the motion situation of the seaplane model 1 in the test process can be recorded in the video recorder 2 in the whole process, so that the tester can analyze the motion state of the seaplane model 1 in the later stage according to the video.
The combined inertial navigation system 3 is installed at the gravity center of the seaplane model 1, the first GPS antenna 4 and the second GPS antenna 5 are respectively installed at the head part and the tail part of the model and are connected with the combined inertial navigation system 3, and the distance between the first GPS antenna 4 and the second GPS antenna 5 is as large as possible so as to ensure the test precision.
The combined inertial navigation system 3 is used for measuring the pitch angle, the course angle, the angular speed, the acceleration and the longitude and latitude of the water plane model 1.
The mobile station data transmission radio station 6 and the mobile station data transmission radio station antenna 7 are installed on the seaplane model 1, the mobile station data transmission radio station 6 is connected with the mobile station data transmission radio station antenna 7, and the mobile station data transmission radio station 6 is connected with the combined inertial navigation system 3.
The computer 8 is connected with a base station data transmission radio station 11, the base station data transmission radio station 11 is connected with a base station data transmission radio station antenna 12, and the GPS base station 9 is connected with a GPS base station antenna 10 and the base station data transmission radio station 11.
The distance between the mobile station radio antenna 7 and the base station radio antenna 12 is within the transmission distance range of the radio.
The data transmission radio station is used for transmitting the GPS base station signal to the combined inertial navigation system, and the combined inertial navigation system carries out real-time difference according to the GPS base station signal and the signals received by the first GPS antenna 4 and the second GPS antenna 5 so as to improve the measurement precision.
The concrete pier 13 is hung in the center of the bottom of the open water pool 14, the seaplane model 1 is provided with an anchor cable ring 15, the head of the seaplane model 1 is connected with a first anchor cable 16, and the tail of the seaplane model 1 is connected with a second anchor cable 17. The model seaplane 1 is suspended in the center of the open water pool 14, the concrete pier 13 and the anchor eye 15 are connected by the anchor rope 18, and the first anchor rope 16 and the second anchor rope 17 are extended to the pool side of the open water pool 14.
The concrete pier 13 is connected to the anchor eye 15 with a third anchor rope 18 for simulating the holding power of the iron anchor. The anchor ropes at the head and the tail of the seaplane model 1 are used for controlling the yaw angle of the seaplane model 1.
Illustratively, the invention also provides a seaplane model anchoring state wave motion response characteristic test method, which adopts a seaplane model anchoring state wave motion response characteristic test device shown in fig. 1-4, and the method comprises the following steps:
1 test equipment installation
2 test of wave motion response characteristics of model of seaplane in anchoring state
During the test, according to the test working condition, the model yaw angle is adjusted and kept by pulling the first anchor rope 16 and the second anchor rope 17, the computer 8 starts to record the combined inertial navigation 3 data transmitted by the base station data transmission station 11, the video recorder 2 starts to record the video, and the wave generating system starts to generate the waves. When the waves reach the seaplane model 1, the first anchor rope 16 and the second anchor rope 17 are loosened, and when the waves generate return waves, the recording, the image recording and the wave generation are stopped. After the whole test is finished, analyzing and obtaining relevant statistical values of the longitudinal inclination angle, the navigation direction angle, the angular speed and the acceleration of the seaplane model 1 in the waves according to the longitudinal inclination angle and the overload change curves of the bow, the midship and the stern of the seaplane model 1 under a series of test states, and drawing the motion trail of the seaplane model 1 anchored under the waves according to longitude and latitude data.
The test testing equipment is used for testing and remotely transmitting the pitch angle, the heading angle, the angular speed, the acceleration and the longitude and latitude of the seaplane model 1 in waves.
The invention can truly simulate the actual anchoring state of the seaplane, and has the advantages of low implementation cost, simple operation and high test data test precision.
Claims (8)
1. The utility model provides a seaplane model anchoring state test device which characterized in that includes: the combined inertial navigation system comprises a combined inertial navigation system (3), a first GPS antenna (4), a second GPS antenna (5), a computer (8), a concrete pier (13), a water pool (14), an anchor cable ring (15), a first anchor cable rope (16), a second anchor cable rope (17) and a third anchor cable rope (18); wherein the content of the first and second substances,
the seaplane model (1) is arranged in the center of the pool (14); the concrete pier (13) is arranged in the center of the bottom of the water pool (14);
the combined inertial navigation system (3) is arranged at the gravity center of the seaplane model (1), and the first GPS antenna (4) and the second GPS antenna (5) are respectively arranged at the head part and the tail part of the seaplane model (1) and are connected with the combined inertial navigation system (3);
the front end of the seaplane model (1) is provided with an anchor cable ring (15) and a first anchor cable (16), the tail part of the seaplane model (1) is connected with a second anchor cable (17), and the concrete pier (13) is connected with the anchor cable ring (15) through a third anchor cable (18); adjusting the seaplane model (1) to different yaw angles by pulling the first anchor rope (16) and the second anchor rope (17);
in the test process, after waves reach the seaplane model (1), the first anchor rope (16) and the second anchor rope (17) are loosened, the computer (8) combines the pitch angle, the course angle, the angular rate and the acceleration of the seaplane model (1) measured by the inertial navigation (3) in the waves to obtain the statistical values of the pitch angle, the course angle, the angular rate and the acceleration according to the waves before generating echoes, and the computer (8) also draws the motion track of the anchoring of the seaplane model (1) under the waves according to the longitude and latitude data measured by the combined inertial navigation (3);
the statistical values include at least: mean, median, maximum, minimum.
2. The apparatus of claim 1, further comprising: a mobile station data transmission radio station (6) and a mobile station data transmission radio station antenna (7);
the mobile station data transmission radio station (6) and the mobile station data transmission radio station antenna (7) are installed on the seaplane model (1), and the mobile station data transmission radio station (6) is respectively connected with the combined inertial navigation system (3) and the mobile station data transmission radio station antenna (7);
the combined inertial navigation system (3) sends the detection data to a mobile station data transmission radio station (6) and sends the detection data through a mobile station data transmission radio station antenna (7).
3. The apparatus of claim 2, further comprising: a GPS base station (9), a GPS base station antenna (10), a base station data transmission radio station (11) and a base station data transmission radio station antenna (12); wherein the content of the first and second substances,
the computer (8) is connected with a base station data transmission radio antenna (12) through a base station data transmission radio (11), and the GPS base station (9) is connected with a GPS base station antenna (10) and the base station data transmission radio (11);
the distance between the mobile station data radio antenna (7) and the base station data radio antenna (12) is within the transmission distance range of the data radio.
4. The device according to claim 3, wherein the base station data radio antenna (12) is configured to send the received measurement data of the combined inertial navigation system (3) sent by the mobile station data radio antenna (7) to the base station data radio (11);
and the base station data transmission radio station (11) is used for sending the received measurement data to the computer (8).
5. The device according to claim 4, characterized in that the GPS base station antenna (10) transmits GPS base station signals to the combined inertial navigation system (3) sequentially through a GPS base station (9), a base station data transmission radio station (11), a base station data transmission radio station antenna (12), a mobile station data transmission radio station antenna (7) and a mobile station data transmission radio station (6);
and the combined inertial navigation system (3) carries out real-time difference according to the GPS base station signal and the signals received from the first GPS antenna (4) and the second GPS antenna (5) so as to improve the detection precision.
6. The apparatus of claim 1, further comprising: a video recorder (2);
the video recorder (2) is arranged on the side face of the water pool (14) and used for recording the motion situation of the seaplane model (1) in the test process.
7. A method for testing the anchoring state of a model of a seaplane, using the apparatus of any one of claims 1 to 6, the method comprising:
adjusting the seaplane model (1) to different yaw angles by pulling the first anchor rope (16) and the second anchor rope (17);
when the seaplane model (1) is at different yaw angles, carrying out a test;
in the test process, when waves reach the seaplane model (1), the first anchor rope (16) and the second anchor rope (17) are loosened, the computer (8) starts to obtain statistical values according to the longitudinal inclination angle, the course angle, the angular rate and the acceleration of the seaplane model (1) in the waves, which are measured by the combined inertial navigation system (3), and draws the motion track of the seaplane model (1) anchored under the waves according to longitude and latitude data until the waves generate echoes;
the statistical values include at least: mean, median, maximum, minimum.
8. The method of claim 7, further comprising:
the combined inertial navigation system (3) receives GPS base station signals and carries out real-time difference according to the GPS base station signals and signals received from the first GPS antenna (4) and the second GPS antenna (5) so as to improve detection accuracy.
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| CN202111680583.3A CN114459730B (en) | 2021-12-30 | 2021-12-30 | Device and method for testing anchoring state of model of water plane |
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| CN202111680583.3A CN114459730B (en) | 2021-12-30 | 2021-12-30 | Device and method for testing anchoring state of model of water plane |
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| CN114459730B CN114459730B (en) | 2023-10-20 |
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2021
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